*
     * @param o
     *            The object to convert
     * @return The converted {@link BigDecimal}
     */
    public static BigDecimal toBigDecimal(final Object o) {
        return toBigDecimal(o, null);
    }

    /**
     * Converts to {@link BigDecimal}.
     *
     * @param o
     *            The object to convert
     * @param pattern
     *            The pattern string

     *
     * @param o
     *            The object to convert
     * @return The converted {@link BigInteger}
     */
    public static BigInteger toBigInteger(final Object o) {
        return toBigInteger(o, null);
    }

    /**
     * Converts to {@link BigInteger}.
     *
     * @param o
     *            The object to convert
     * @param pattern
     *            The pattern string

    assertThat(converter.convert("1.0")).isEqualTo(1.0);
    assertThat(converter.convert("0.0")).isEqualTo(0.0);
    assertThat(converter.convert("-1.0")).isEqualTo(-1.0);
    assertThat(converter.convert("1")).isEqualTo(1.0);
    assertThat(converter.convert("0")).isEqualTo(0.0);
    assertThat(converter.convert("-1")).isEqualTo(-1.0);
    assertThat(converter.convert("1e6")).isEqualTo(1e6);

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.core.convert;

import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.CoreMatchers.nullValue;
import static org.junit.Assert.assertThat;

import org.codelibs.core.exception.ClIllegalArgumentException;

     * Converts to {@link Float}.
     *
     * @param o
     *            The object to convert
     * @return The converted {@link Float}
     */
    public static Float toFloat(final Object o) {
        return toFloat(o, null);
    }

    /**
     * Converts to {@link Float}.
     *
     * @param o
     *            The object to convert
     * @param pattern
     *            The pattern string

    if (MINUTES.convert(nanos, NANOSECONDS) > 0) {
      return MINUTES;
    }
    if (SECONDS.convert(nanos, NANOSECONDS) > 0) {
      return SECONDS;
    }
    if (MILLISECONDS.convert(nanos, NANOSECONDS) > 0) {
      return MILLISECONDS;
    }
    if (MICROSECONDS.convert(nanos, NANOSECONDS) > 0) {
      return MICROSECONDS;
    }
    return NANOSECONDS;
  }

  private static String abbreviate(TimeUnit unit) {

    assertThat(converter.convert("1")).isEqualTo(1);
    assertThat(converter.convert("0")).isEqualTo(0);
    assertThat(converter.convert("-1")).isEqualTo(-1);
    assertThat(converter.convert("0xff")).isEqualTo(255);
    assertThat(converter.convert("0xFF")).isEqualTo(255);
    assertThat(converter.convert("-0xFF")).isEqualTo(-255);
    assertThat(converter.convert("#0000FF")).isEqualTo(255);

 */
package org.codelibs.core.convert;

import static org.codelibs.core.convert.DateConversionUtil.toCalendar;
import static org.codelibs.core.convert.DateConversionUtil.toDate;
import static org.codelibs.core.convert.DateConversionUtil.toPlainPattern;
import static org.codelibs.core.convert.DateConversionUtil.toSqlDate;
import static org.codelibs.core.convert.DateConversionUtil.toSqlDateJdbcEscape;

     *
     * @param o
     *            The object to convert
     * @return The converted {@link Calendar}
     */
    public static Calendar toCalendar(final Object o) {
        return toCalendar(o, null);
    }

    /**
     * Converts to {@link Calendar}.
     *
     * @param o
     *            The object to convert
     * @param pattern
     *            The pattern string

# JSON Compatible Encoder { #json-compatible-encoder }

There are some cases where you might need to convert a data type (like a Pydantic model) to something compatible with JSON (like a `dict`, `list`, etc).

For example, if you need to store it in a database.

For that, **FastAPI** provides a `jsonable_encoder()` function.

## Using the `jsonable_encoder` { #using-the-jsonable-encoder }